CN103069889A - Methods and apparatus for voice domain operation - Google Patents
Methods and apparatus for voice domain operation Download PDFInfo
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Abstract
Methods and apparatus for voice domain operation are described herein. One example method includes determining that an LTE network is not preferred for voice service provision; storing an identification of the LTE network that is not preferred for voice service provision; and accessing the stored identification of the LTE network that is not preferred for voice service provision.
Description
Technical field
The disclosure relates generally to mobile communication, relates more specifically to the method and apparatus for the voice domain operation.
Background technology
The subscriber equipment (UE) of doing in the mode of operation centered by voice will be connected to the network facilities that voice service is provided.For example, UE can attempt being connected to Long Term Evolution (LTE) network coverage obtaining voice service, and if voice service unavailable, then can gravity treatment to the second generation or the third generation (2G/3G) network coverage.
Description of drawings
Fig. 1 is the block diagram of the UE communication network that can operate therein.
Fig. 2 is the block diagram of example UE.
Fig. 3 is the block diagram of the function that can realize in the UE of Fig. 2.
Fig. 4 is the flow chart of the instantiation procedure that can carry out of the UE centered by voice.
Fig. 5 is the flow chart of the example scanning process that can carry out of the UE centered by voice.
Fig. 6 is the flow chart of the sample list maintenance process that can carry out of the UE centered by voice.
Fig. 7 is the block diagram that can realize the example process system of equipment disclosed herein and method.
Embodiment
Herein in conjunction with various UE with arranging to describe described method and apparatus, described UE uses to arrange and is also referred to as Home Public Land Mobile Network network HPLMN carrier preference item.By Virtual network operator UE use is arranged and to offer UE, to specify support circuit-switched rollback CSFB) and how processed voice service of the UE that supports internet multimedia subsystem (IMS).Example is used to arrange and is described below.
In " only circuit switching (CS) voice " use arranges, UE will only use the CS territory (according to 3GPP TS23.292, might use the IMS signaling) initiate audio call, and UE will not attempt using packet switching (PS) to carry the voice conversation of initiating based on IMS.
In the use of " the CS voice are first-selected, and IMS PS voice take second place " arranges, if the CS voice can be used, then UE will use CS territory (might use the IMS signaling, referring to 3GPP TS23.292) to initiate and the terminated speech calling.UE attempts tracking area/location (TA/LA) renewal process (according to 3GPP TS23.272) that evolved packet system/international mobile subscriber sign (EPS/IMSI) is adhered to or made up of combination.If combination EPS/IMSI adheres to or makes up the TA/LA renewal process and fail to register this IMSI in the CS territory, perhaps successfully the registration but only have " only SMS " indication little message, or successfully register but have " the non-first-selection of CSFB " and indicate, then UE attempts using based on the voice of IMS initiating audio call.If for example because " based on the IMS voice support indication of PS session " indicates not support voice, UE to fail to use IMS to carry out voice, then UE arranges as described ground for " centered by voice " or " data-centered " according to it and turns round.
In the use of " IMS PS voice are first-selected, and the CS voice take second place " arranges, if the IMS voice can be used, then UE will initiate and the terminated speech session with IMS.The combination TA/LA that the combination EPS/IMSI that UE can attempt having or do not have " only SMS " adheres to, has or do not have " only SMS " upgrades or EPS adheres to/tracing section updating (TAU) process.If for example because " based on the IMS voice support indication of PS session " indicates not support voice (in " adhering to acceptance " or subsequently " TAU acceptance "), UE fails to use IMS to carry out voice, then UE uses CS territory (as 3GPP TS23.272 is defined), wherein might use IMS signaling (referring to 3GPP TS23.292).If not yet carry out, then UE attempts combination TA/LA renewal process.The registered ims I in the CS territory if combination TA/LA renewal process is failed, perhaps successfully register but have " only SMS " and indicate, or successfully register but have " the non-first-selection of CSFB " and indicate, and UE fails to use IMS to carry out voice, and then UE arranges as described ground for " centered by voice " or " data-centered " according to it and turns round.
In " only IMS PS voice " use arranges, UE will initiate voice conversation with IMS, and will not attempt the CS voice.The combination TA/LA that the combination EPS/IMSI that UE can attempt having " only SMS " adheres to, has " only SMS " upgrades or EPS adheres to/TAU.If UE fails to use IMS (for example to carry out voice, since " based on the IMS voice support of PS session indication " indication support voice not on evolution UMTS terrestrial radio Access Network (E-UTRAN)), then UE arrange according to it as described for " centered by voice " or " data-centered " turn round.
This paper describes the method and apparatus that is used for the voice domain operation.An exemplary method comprises: determine that the LTE network (E-UTRAN) is not first-selected for voice service provides for example; Storage is not the sign of the LTE network of first-selection for voice service provides; And access stores is not the sign of first-selected LTE network for voice service provides.
As described herein, when UE determined that it will can not be registered to specific LTE network, UE stored the indication of this LTE network.Institute's canned data was being selected or was being used during gravity treatment LTE network by UE afterwards, with the LTE network of not expecting before avoiding selecting.
Fig. 1 is the block diagram of the UE102 communication system 100 that can operate therein.Example communication system 100 comprises some tracking area TA1～TA7, and each tracking area comprises that one or more residential quarters (not shown) is to form the LTE network coverage 103.Tracking area TA1～TA7 is Route Area (RA) or LA alternatively.Tracking area TA1～TA7 is interrelated by its sign in tracking area identification (TAI) tabulation, and this TAI tabulation can offer UE102 by mobility manager or any other networking component.Shown in example communication system 100, the tracking area TA1～TA7 in the TAI tabulation may not all support identical service.For example, tracking area TA5 and TA6 do not support the voice (VoIMS) of Internet-based IP multimedia subsystem, IMS, and tracking area TA1～TA4 and TA7 support VoIMS.
In addition, all or part of of some tracking areas in the tracking area (for example, TA4, TA5 and TA7) can overlap from the different network coverages 104.The network coverage 104 can be provided by 2G and/or 3G network technology, strengthen data rate GSM evolution (EDGE) radio access network (GERAN), Universal Mobile Telecommunications System radio access network (UTRAN) such as global system for mobile communications, etc.
When connecting, UE102 initiates be appointed as the registration process of the network with high priority by UE102 when UE102 at first covers 103 (for example, inner at tracking area TA5) with LTE.This registration process can be attaching process, tracing section updating (TAU), combination is adhered to or make up TAU.In response to registration process, cover 103 when having agreed to initiate with being connected of UE102 at LTE, UE102 receives response.This response comprises the indication to the tenability of the residing tracking area of UE102 (for example, tracking area TA5).
Certainly, the specific tracking district can not provide all that UE102 needs or first-selected services.For example, UE102 can be the UE centered by voice, and its first-selected voice service (for example, VoIMS).Therefore, when UE102 access TA5, it finds that TA5 does not support VoIMS, and will realize that TA5 is not the preferred network for the providing of voice service, because it can not provide the required service of UE102.As hereinafter explaining, UE102 will remember that TA5 is not the preferred network for the providing of voice service, and will use in future the information of remembeing, to avoid setting up in order to obtain voice service and the communicating by letter of TA5.For example, 3GPP document S2-094238, S2-094147, C1-092354, S2-094179, C1-092353, C1-092354 and C1-092867 have described the example implementation of the indication that the VoIMS that can offer UE102 is supported.Obtain desired service in the situation that fail to cover 103 via TA5 from LTE, UE102 will carry out failover (fai lover) and cover 104 to 2G/3G in the trial of obtaining voice service.
Obtain voice service if can not cover 104 from 2G/3G, then UE102 can again attempt covering 103 from LTE and obtain voice service, but will not first-selected for voice service provides because of previous obtaining the failed trial of voice service and remember TA5 from TA5, and will be because removing the priority of TA5, but can attempt obtaining voice service from TA7.As shown in the example of Fig. 1, TA7 can provide VoIMS, and therefore UE102 will be connected to TA7, and obtains voice service from TA7.
In another example, obtain voice service if UE102 attempts covering 103 from LTE, and can not realize the time, then UE102 will attempt to cover 104 from 2G/3G and obtain voice service.If UE102 can not cover 104 from 2G/3G and obtain voice service, then UE102 can access LTE and cover 103, and accepts not comprise the service of voice service.
Alternatively, as hereinafter explaining, obtained voice service if UE102 covers 104 from 2G/3G, then UE102 can periodically scan the high-priority network that the UE102 required service is provided.When carrying out these periodic scan, it is not first-selected TA that UE102 remembers for voice service provides, to avoid the delay when serving from the Network Capture that preferred voice service can be provided.
Fig. 2 shows the further details of an example UE102, and this example UE102 also can be called travelling carriage (MS).This example UE102 comprises: visual displays 212, keyboard and possible one or more auxiliary user interfaces (UI) 216, each in them is coupled to controller 206.Controller 206 comprises connection manager 207, as hereinafter described in detail, and the connection of connection manager 207 control UE102 and one or more network (for example, LTE network, 2G/3G network, etc.) generation.In connection with Fig. 3～exemplary method and the equipment of 6 descriptions in order to realize connection manager 207.
Explain as following, tabulation 245 storage UE102 can be used for avoiding attempting not providing the information of the network connection of voice service.Controller 206 is not controlled the integrated operation of UE102 usually, and the signal processing operations related with communication function carried out by RF transceiver circuitry 208 usually.Controller 206 is inputted with information, canned data, user that display 212 interfaces are connected to present reception, etc.
As being the keypad of phone type or the keyboard 214 of complete digital alphabet keyboard, usually be provided for the following data of input: for the data of in UE102, storing, for the information that sends to network, in order to the telephone number that carries out call, be used for the order carried out at UE102 and possible other or different user's inputs.
UE102 via antenna 210 on Radio Link to network (for example, LTE cover 103 and/or 2G/3G cover 104) send signal of communication and from the network receiving communication signal.RF transceiver circuitry 208 is carried out for example modulating/demodulating, coding/decoding and encrypt/decrypt.RF transceiver circuitry 208 is suitable for therein specific one or more wireless coverages (for example, LTE, 2G, 3G) of operation of UE102 plan.
UE102 also comprises battery interface 234, is used for holding one or more rechargeable batteries 232.Battery 232 provides power to the circuit among the UE102, and battery interface 234 provides machinery and electrical connection for battery 232.Battery interface 234 is coupled to adjuster 236, and adjuster 236 is regulated the power V+ of the equipment that offers.When UE102 is in operation, the RF transmitter of RF transceiver circuitry 208 usually only when it sends information to network electricity connect or open, other the time then close with saving resource.Similarly, the RF receiver of RF transceiver circuitry 208 periodically cuts out to save power usually, until at the appointed time need it to receive signal or information (if present) during the section.
UE102 uses subscriber identity module (SIM) 240 to operate, and SIM240 is connected to UE102 or inserts UE102 at SIM interface 242 places.In the non-existent situation of SIM240, UE102 can be called as mobile device (ME); In the situation that SIM240 exists, UE102 can be called as subscriber equipment (UE).SIM240 is one type detachable memory module or smart card, is used for the end user (or subscriber) of sign UE102, and in addition personalized to equipment, etc.In the non-existent situation of SIM240, example UE102 is not for being fully exercisable for the communication of cordless communication network 204.By SIM240 is inserted UE102, the end user can have the right to access any service or all services in the service that he/her orders.
SIM240 generally includes processor and is used for the memory of storage information.Because SIM240 is coupled to SIM interface 242, it is coupled to controller 206 by communication line 244.In order to identify the subscriber, SIM240 comprises some customer parameters, such as international mobile subscriber sign (IMSI).SIM240 use the advantage of SIM240 to be that also the end user does not need to be subject to any single physical travelling carriage, because can use in the different mobile stations of any number.SIM240 can also store the other user profile of UE102, comprises notepad (perhaps calendar) information, recent call information and network connection information.245 are shown as and are stored in the memory 243 although tabulate, and this tabulation also can be stored among the SIM240, perhaps is stored in any other suitable position.
UE102 can be individual unit, such as the personal digital assistant (PDA) of data communications equipment, cell phone, the multi-functional communications equipment with data (for example, Email, internet access, personal information management etc.) and voice communication capability, support of wireless communication or the integrated computer of internal modems.Alternatively, UE102 can be the multimode unit, comprises a plurality of independent assemblies, and described assembly comprises, but is limited to never in any form: computer or be connected to other equipment of radio modem.Particularly, for example, in the travelling carriage block diagram of Fig. 2, RF transceiver circuitry 208 and antenna 210 can be implemented as the radio modem unit that can insert the port on the laptop computer.In this case, laptop computer will comprise display 212, keyboard 214, one or more auxiliary UI216, and controller 206 can be the CPU of computer.It will also be appreciated that, computer or other equipment that usually can not carry out radio communication may be suitable for being connected to RF transceiver circuitry 208 and the antenna 210 of single unit (all described above those), and effectively take the control to RF transceiver circuitry 208 and the antenna 210 of single unit.
UE102 communicates by letter in cordless communication network, and by cordless communication network communication, this cordless communication network can be cellular communications networks.Described in conjunction with Figure 1 such as mentioned, wireless network can be configured according to LTE technology, 2G technology, 3G technology or any other suitable technology.Wireless network can configure according to any communication technology, and the described communication technology is such as comprising: universal mobile telecommunications system (UMTS), global microwave interoperable access (WiMAX), code division multiple access access (CDMA), general packet radio service (GPRS), global system for mobile communications (GSM), enhancing data rate GSM evolution (EDGE), GERAN, evolution UMTS terrestrial radio Access Network (E-UTRAN) etc.
In operation, UE102 by carrying out so-called registration process so that its existence known by wireless network.As mentioned above, registration process can be attaching process, tracing section updating (TAU), combination is adhered to or make up TAU.The logical links between UE102 and the network is set up in this operation, and so that UE102 for example can be used for receiving paging, the notice about entering office data, the SMS message via network, etc.In order to transmit and receive data, UE102 helps to activate it and wants the packet data address used.This operation so that UE102 known by the gateway in the core net; Can begin afterwards mutual with outer data network.For example use encapsulation and tunnel transmission, user data can transmit between UE102 and outer data network pellucidly.
Expression has been shown in Fig. 3～6 can be performed to realize the equipment of instantiation procedure of some or all unit of UE102 and the block diagram of flow chart.In the following description, determine it to be process for any type of identification particular result, and be not limited to calculate or analytic process.For example, determine to relate to read designator, mark, register, variable, identifier etc. to determine whether to support certain service.In another example, determine to relate in order to inquiry, extraction, the calculating (computing) of determining the result, calculate (calculating), consideration etc.
An example of the connection manager 207 shown in Fig. 3 comprises: connect selector 302, service availability determiner 304 and tabulation maintenance device 306.Fig. 3 also shows the non-first-selected TA tabulation 245 for voice service, and it can form or can not form the part of connection manager 207, but can be used by it.
Connecting selector 302, service availability determiner 304 and tabulation maintenance device 306 can realize in processor and/or can make up to realize with any expectation of hardware, firmware and/or software.For example, can use one or more integrated circuits, discrete semiconductor assembly and/or passive electric components.Therefore, for example, connect selector 302, service availability determiner 304 and tabulation maintenance device 306 or its part, can use one or more circuit, programmable processor, application-specific integrated circuit (ASIC) (ASIC), programmable logic device (PLD), field programmable logic device (FPLD) etc. to realize.Connect selector 302, service availability determiner 304 and tabulation maintenance device 306 or its part, can use on the medium that is stored in machine-accessible and for example can be realized by instruction, code and/or other software and/or the firmware etc. that carry out processor (for example, example processor 712).When in institute's applying equipment claim any one read to comprise that pure software is realized, in connection selector 302, service availability determiner 304 and the tabulation maintenance device 306 at least one clearly is defined as thus comprises tangible medium, such as solid-state memory, magnetic memory, DVD, CD etc.
Connect selector 302 and be operating as the network connection of selecting to be used for UE102.For example, connect selector 302 can be from for example SIM240 and tabulation 245 reading information, and select LTE to cover 103 and/or 2G/3G covering 104 with this information.In one implementation, SIM240 can storage networking priority, wherein UE102 seeks to connect from these networks, but 245 one or more (for example, the TA in PLMN or those PLMN) that can store in those networks of indication that tabulate are not first-selected information for voice service provides.
304 assessments of service availability determiner are from the information that connects selector 302, to determine whether and can obtain necessary, expectation or first-selected service from particular network.For example, connect selector 302 and can attempt obtaining voice service from specific LTE network TA (for example, the TA5 of Fig. 1), in the time can not obtaining voice service from specific LTE network TA.Service availability determiner 304 determines that this service that connection selector 302 is asked is disabled or is not first-selected.This information is delivered to tabulation maintenance device 306.
In this mode, UE102 can follow the tracks of the previous decision of UE102 and not register the network of any service (for example, PLMN) or network portion (for example TA), so this information can be connected selector 302 and uses.Use this information, connect selector 302 and can avoid attempting the network connection that voice service can not be provided with preferred manner that it is known, user's experience of having saved thus the time and having improved UE102.Therefore, tabulation 245 has prevented that but the UE102 centered by voice of support evolved packet system (supporting EPS) from before having made trial the repeated attempt of the voice service of failing to obtain from its those TA that obtain voice service from this UE102.
Can safeguard a more than tabulation.For example, the tabulation maintenance device 306 of UE102 can be safeguarded two or more tabulations.Can exist a sign for the tabulation of the non-first-selected TA for the IMS voice of PS, it comprises owing to not supporting PS voice based on IMS to cause UE102 to fail to obtain therein to the TA based on the support of the voice of IMS.Nominally this tabulation can be called " for the non-first-selected TA for the IMS voice of PS " tabulation.Can also have the tabulation of the non-first-selected TA of another sign for circuit switched fallback (CSFB) service, it comprises the TA that UE102 can not obtain the CSFB service therein.This tabulation can be called " the non-first-selected TA for CSFB " tabulation on paper.Can also exist indication not have therein the tabulation of the available TA of voice service (for example, IMS or CSFB).This tabulation can be called " the disabled TA of voice ".Therefore, dissimilar tabulation can have dissimilar feature, and the scope of described feature can comprise from the specified speech unavailability to the concrete reason for the voice unavailability.In UE102, can use any expectation combination of these tabulations.The characteristic of these two tabulations, maintenance and use will be obeyed the principle that this paper describes for tabulation 245.
Expression has been described in Fig. 4～6 can example such as the example flow diagram of the process that realizes of computer-readable instruction.The instantiation procedure of Fig. 4～6 can use one or more processors (for example, processor 712), controller (for example, controller 206) and/or any other suitable treatment facility to carry out.For example, the instantiation procedure of Fig. 4～6 can use the coded command of storing on one or more tangible computer-readable mediums (for example, computer-readable instruction) realizes all in this way flash memories of described tangible computer-readable medium, read-only memory (ROM) and/or random access memory (RAM).As used herein, term " tangible computer-readable medium " clearly is defined as: comprise the computer-readable memory of any type, and transmitting signal is foreclosed.As additional or alternative, the instantiation procedure of Fig. 4～6 can use the coded command of storing on one or more non-instantaneous computer-readable mediums (for example, computer-readable instruction) realizes, the all in this way flash memories of described non-instantaneous computer-readable medium, read-only memory (ROM), random access memory (RAM), high-speed cache, perhaps be used for information is stored any duration and (for example, be used for the time period in prolongation, for good and all, of short duration moment, adhoc buffer, and/or high speed information cache information) any other storage medium.As used herein, term " non-instantaneous computer-readable medium " clearly is defined as the computer-readable medium that comprises any type, and transmitting signal is foreclosed.
Alternatively, some or all instantiation procedures of Fig. 4～6 can be realized with the combination of any logic, all in this way application-specific integrated circuit (ASIC)s of described logic (ASIC), programmable logic device (PLD), field programmable logic device (FPLD), discreet logic, hardware, firmware etc.In addition, some or all instantiation procedures of Fig. 4～6 can manually realize, perhaps any combination as any aforementioned techniques realizes, for example the combination in any of firmware, software, discreet logic and/or hardware.In addition, although the instantiation procedure of Fig. 4～6 is to describe with reference to the flow chart of figure 4～6, can use the additive method of the process of realization Fig. 4～6.For example, the execution sequence of step can change, and/or more described steps can change, delete, segment or make up.In addition, any or all of instantiation procedure of Fig. 4～6 can for example come order by processing threads, processor, equipment, discreet logic, the circuit that separates and/or carry out concurrently.
Fig. 4 shows can be by (the process 400 of for example, UE102) carrying out of the UE centered by voice.Although the process of Fig. 4 is to describe in conjunction with the connection manager 207 of Fig. 3, this only is that example is described, and the process of Fig. 4 can be carried out by any part of UE102 (comprise be not configure as shown in Figure 3 connection manager 207).
The connection selector 302 choice for use LTE networks (step 402) of UE102, and service availability determiner 304 is determined in LTE voice service whether available (step 404).If voice service can be used, then connect selector 302 and use LTE voice service (step 406).
Yet, if service availability determiner 304 determines that voice service unavailable (step 404) (namely in LTE, this LTE is not first-selected for voice service provides), tabulation maintenance device 306 adds the relevant TAI of this LTE network (for example, PLMN ID) or this LTE network to tabulation 245 (steps 408).Voice service unavailability or first-selection are not to provide voice service by LTE, may be because: do not support VoIMS; Combination registration failure for the CSFB service; UE102 fails for voice to the registration of internet multimedia control network subsystem; UE102 be centered by voice but the IMS voice unavailable, and receive have " the non-first-selection of circuit switched fallback " indication or " only Short Message Service " indication combination adhere to acceptance.As additional or alternative, tabulation maintenance device 306 can add the indication (for example, PLMN ID is such as the MCC+MNC that derives from TAI) of PLMN to tabulation 245.The PLMN designator can also comprise that about whether all TA among the PLMN are indicated as the indication of non-first-selection.This tabulation maintenance device 306 can be added a cover timestamp to its list item that produces in tabulation 245, so that the processing of back can be eliminated the stale information in the tabulation 245.
Do not have to find to be that first-selected LTE network (step 404) and tabulation maintenance device 306 are made in the situation about the indication (step 408) of this situation at service availability determiner 304 for voice service is provided in tabulation 245, connect selector 302 gravity treatments and cover 104 network connection (step 410) and forbidding LTE communication capacity (step 412) to 2G/3G.
Determine 2G/3G fault (step 414) does not occur as long as connect selector 302, UE102 just is camped on the 2G/3G network connection 104 (step 416), until the time (step 418) of execution cycle property scanning.Yet, determine to have occurred the 2G/3G fault if connect selector 302, to the internuncial connection of 2G/3G (step 414) occurs never perhaps, then connect selector 302 and reactivate the LTE ability, and gravity treatment is to the LTE network, and voice service (by identical or different PLMN and/or TA) is obtained in trial.Yet, even the LTE network may not be the first-selected supplier of voice service, perhaps may not provide voice service (step 420), even UE102 is centered by voice, UE102 still remains in the situation without voice service and is connected to the LTE network, and so operation until the time (step 418) of execution cycle property scanning.
About whether reactivating the LTE ability and/or in the situation that remaining to the judgement of the connection of LTE network without voice service and can configure to carry out according to operator.Operator can be for example provides this configuration among the UE102 by following technology: by aerial (OTA) technology, by open mobile alliance device management (OMADM) message, dedicated management object or as to the broadcasting of numerous UE or to the downlinlc message of the dedicated transmissions of UE102.
When arriving the time of carrying out scanning (step 418), carry out scanning (step 422), figure 5 illustrates an example of this scanning.This scanning can be periodic scanning or can be scanning (for example, the scanning of the application on the UE102 and/or network-triggered) by Event triggered.As hereinafter explaining, according to 3GPP TS23.122, scanning 422 makes it possible to use the LTE ability when scanning higher priority PLMN, has selected limit priority PLMN to guarantee UE102.The ability of enabling the LTE ability can guide by configurable parameter, described configurable parameter can be by for example open mobile alliance device management message (OMA DM) or over-the-air message (such as SMS), for example be delivered to UE102 via Non-Access Stratum signaling (NAS) (for example, adhering to acceptance, tracing section updating acceptance, routing region updating acceptance, service acceptance or any other NAS signaling).
Scanning 422 can be carried out by connecting selector 302, and can start from enabling or reactivating the LTE ability and come convenient and communicate by letter (step 502) LTE covering 103.Connect selector 302 then according to Access Layer (AS) standard search network connection (step 504), until find the connection (step 506) of satisfying the AS standard.
In the first example, when UE102 carries out the PLMN selection with tabulation 245, connect the not PLMN in tabulation 245 of selector 302 search.In the second example, when UE102 carries out residential quarter selection or gravity treatment with tabulation 245, connect the not residential quarter in tabulation 245 of selector 302 its TAI of search.
Find satisfy the AS standard connection (step 506) afterwards, whether 103 connections (step 508) that provide are provided LTE to connect any connection in the connection that selector 302 determines to find.If the connection of finding is to cover 103 (steps 508) from LTE, then connect selector 302 access lists 245 with the connection determining to be found whether on non-preferred list, and do not consider candidate's preemption (step 510) in non-first-selection.By reference listing 245, UE102 (it is under the pattern centered by voice) avoids selecting or PLMN and/or the TA of gravity treatment in this tabulation, because UE102 had before determined not provide in those TA voice service or those TA not to provide the first-selection of voice service.As explained above, UE102 can store one or more tabulations 245.If UE102 stores two tabulations: " the disabled TA of voice " and " TA of non-first-selection for CSFB ", if and UE102 be centered by voice and UE102 use to arrange and to be set to " only CS ", then UE102 avoid selecting or gravity treatment to those PLMN and/or the TA in " the disabled TA of voice " tabulation but in " TA of non-first-selection for CSFB " tabulates not.The operation of the voice domain selection course of 3GPP TS23.221 defined determines whether there is voice service in candidate TA for the UE centered by voice, and to the TA that voice service can not be provided that connects in the selector 302 notice TAI tabulations.
Do not considering non-first-selected LTE candidate (step 510) afterwards, do not covering (step 508) if perhaps find any LTE, then connecting selector 302 and select to account in advance (step 512) on the candidate connection based on the AS specified standard.
If tabulation removing event (step 602) does not occur, whether the maintenance device 306 of then tabulating determines tabulation full (step 606).In one example, this is determined and can carry out in the following time: when tabulation determiner 306 has the information in tabulation of will being stored in 245 and do not have exceptional space in tabulation 245.245 is full if tabulate, thus perhaps enough full delete list project be useful, then according to the member (step 608) of standard from the delete list 245 245 of tabulating.This standard can comprise first-in first-out, at first remove thus tabulation in 245 at first or the oldest list item.This can finish by the timestamp that compares list entry.
Fig. 7 is the block diagram that can realize the example process system 700 of equipment described herein and method.Treatment system 700 can be for example corresponding with the following: the computing equipment of travelling carriage processing platform, network element processing platform, server, personal computer, personal digital assistant (PDA), internet device, mobile phone or any other type.For example, treatment system 700 can realize any assembly of travelling carriage 102 and mobile communications network 104.
The system 700 of this direct example comprises processor 712, such as general purpose programmable processors, flush bonding processor, microcontroller etc.Processor 712 comprises local storage 714, and carries out the coded command 716 that is present in the local storage 714 and/or in another memory devices.Processor 712 can be carried out machine readable instructions to realize the process of expression in Fig. 4～6.Processor 712 can be the processing unit of any type, such as from
Microprocessor series,
Microprocessor series,
Microprocessor series and/or
One or more microprocessors of processor family, from
Microcontroller series,
One or more microcontrollers of microcontroller series, etc.Certainly, other processor from other series also is suitable.
One or more input equipments 726 are connected to interface circuit 724.Input equipment 726 allows the user to processor 712 input data and orders.Input equipment can for example be realized by keyboard, mouse, touch-screen, track pad, trace ball, calibration marker (isopoint) and/or speech recognition system.
One or more output equipments 728 also are connected to interface circuit 724.Output equipment 724 can for example be realized by display device (for example liquid crystal display), printer and/or loud speaker.Therefore, interface circuit 724 generally includes graphics driver card.
In some instances, computer 700 also comprises one or more mass-memory units 730, is used for storing software and data.The example of this mass-memory unit 730 comprises floppy disk, hard disk drive, compact disk and digital versatile disc (DVD) driver.
As the alternative that realizes method described herein and/or equipment in the system such as the equipment of Fig. 7, method described herein and/or equipment can be embedded in the structure such as processor and/or ASIC (application-specific integrated circuit (ASIC)).
As mentioned above, can realize aforesaid content with the different modes of arbitrary number.One of these modes are by measured scheme.For this reason, following content description how in communication standard, promote concept described herein.
3GPP TS23.122, the 9.2.0 version, " Architectural Requirements (framework requirement) ", can stipulate:
3.7 for the MS centered by voice, the non-first-selected TA among the E-UTRAN
In order to prevent from supporting MS EPS, centered by voice to attempt before MS but fail to obtain therein that repeated attempt obtains voice service among the TA of voice service, MS preserves " the non-first-selected TA for voice service " tabulation.When this MS centered by voice satisfies following condition, should " the non-first-selected TA for voice service " tabulation be updated:
-operation is according to 3GPP TS23.221[xx] the voice domain selection course of definition, and conclude that voice service is unavailable in TA, and therefore this MS must be forbidden the E-UTRAN ability and lays equal stress on and choose GERAN/UTRAN; Perhaps
-when MS under the S1 pattern and the voice domain preference of MS be when attempting registration CS service in the situation of " only CS voice ", MS receives Reason For Denial #18 (CS territory can with).
In these cases, MS the TAI of correspondence (if it is not also in tabulation) should be added in the TAI tabulation for MS can with each TAI be stored into " the non-first-selected TA for voice service " tabulation.
The maximum number of the possible list item in this tabulation depends on realization, but must have the space that is used at least one list item.In the following time, delete this tabulation (if this tabulation exists):
-MS shutdown;
-SIM is removed;
-MS uses to arrange and changes to " data-centered " from " centered by voice "; Perhaps
-depend on the timer expiration of realization.
When full and other list item need to be stored when this " non-first-selected TA for voice service " tabulation, delete the oldest list item.
For the PLMN selection course of the sub-clause 4.4 of this document, do not consider when content that should " the non-first-selected TA for voice service " tabulation.For 3GPP TS25.304[32] and 3GPP TS36.304[43] middle residential quarter selection course and the cell reselection process of describing, consider to be somebody's turn to do the content that " the non-first-selected TA for voice service " tabulates.
4.9 avoid the tracking area of the not support voice service among the E-UTRAN
Have that the MS centered by voice of list item in " the non-first-selected TA for voice service " tabulation avoids selecting or gravity treatment those TA in this tabulation, because MS has determined not provide any voice service in those TA.At 3GPP TS23.221[xx] in the operation of voice domain selection course of regulation, for the MS centered by voice, determine in this TA and TAI tabulation for MS can with TA in be to exist or do not have the voice service service.
In addition, 3GPP TS24.301, the 9.2.0 version, " Non-Access-Stratum (NAS) protocol for Evolved Packet System (EP S) Architectural Requirements (Non-Access Stratum (NAS) protocol infrastructure for evolved packet system (EPS) requires) " illustrates change below can being increased to comprise, wherein underlined text represents to add and the deletion of strikethrough textual representation: 4.5 forbid and reactivate the E-UTRA ability of UE
When the UE that supports A/Gb and/or Iu pattern and S1 pattern need to rest on A/Gb or Iu pattern lower time, in order to prevent undesirable switching or cell reselection from UTRAN/GERAN to E-UTRAN, UE should be forbidden
Its 
The E-UTRA ability,
And carry out following operation:
-after UE selects GERAN or UTRAN, UE should not arrange " adhere to request information and " " E-UTRA support " bit of the MS wireless access capability IE in the routing region updating request information (referring to 3GPP TS24.008[13], sub-clause 10.5.5.12a), " E-UTRA support " bit of mobile station classmark 3IE (referring to 3GPP TS24.008[13], sub-clause 10.5.1.7) and " ISR support " bit of MS network capabilities IE (referring to 3GPP TS24.008[13], sub-clause 10.5.5.12);
If-UE supports 3GPP TS23.122[6] middle " the non-first-selected TA for voice service " tabulation that defines, then the TAI of the residential quarter at the current place of UE should be added to this " non-first-selected TA for voice service " tabulation.If UE has the effective TAI tabulation that receives from network in upper once register update or GUTI redistribute, then each TAI in this TAI tabulation also should be added to this " the non-first-selected TA for voice service " and tabulates.Then, should " the non-first-selected TA for voice service " tabulation should be provided for lower floor and carry out the TS25.304[15A at 3GPP] and 3GPP TS36.304[21] in the residential quarter selection and the gravity treatment that define; And
-UE NAS layer should be to Access Layer indication forbidding E-UTRA ability.
This paper describes the method and apparatus for the voice domain operation.A kind of exemplary method comprises: determine that the LTE network is not first-selected for voice service provides; Storage is not the sign of the LTE network of first-selection for voice service provides; And access stores is not the sign of first-selected LTE network for voice service provides.
As described herein, when UE determined that it can not be registered to specific LTE network, UE stored the sign of this LTE network.Institute's canned data was being selected or was being used during gravity treatment LTE network by UE afterwards, with the LTE network of not expecting before avoiding selecting.Other method described herein comprises: attempt with a LTE network be connected to obtain voice service; Determine that described LTE network is not first-selected for voice service provides; Determine to obtain voice service from alternative network; Attempt the voice service that is connected to obtain first-selection with the 2nd LTE network; Determine that described the 2nd LTE network is not first-selected for voice service provides; Even and described the 2nd LTE network is not first-selected for voice service, with described the 2nd LTE network connection yet.
According to the method, attempt comprising with being connected of LTE network: attempt being connected with the first public land mobile network, and attempt comprising with the 2nd being connected of LTE network: attempt being connected with the second public land mobile network that is different from the first public land mobile network.With the 2nd LTE network connection be the configuration of operator control.By using following every configuration with this operator's control to offer subscriber equipment: over-the-air message, open mobile alliance device management message, dedicated management object or downlinlc message.
Determine that the 2nd LTE network is not the first-selected receipt message that comprises for voice service provides.This message can be with being following one or more: " not supporting the voice of Internet-based IP multimedia subsystem, IMS " indication; " for the combination registration failure of circuit switched fallback service " indication; " failed to internet multimedia control network registry for voice " indication; " acceptance is adhered in the combination with the circuit switched service that is designated as non-first-selection " indication; Perhaps " has the combination of only being appointed as little messenger service and adheres to acceptance " indication.In preamble, a LTE network is not identical with the 2nd LTE network.
Other method comprises: attempt with the LTE network connection to obtain voice service; Determine that the LTE network is not first-selected for voice service provides; Forbidding LTE ability; Be connected to alternative network to obtain voice service; And scanning higher priority network connection, described scanning is included in enables the LTE ability and scans one or more LTE networks when being connected to alternative network.
Scanning higher priority network connection comprises: periodic scanning.Scanning higher priority network connection comprises enables the LTE ability, comprises the configurable parameter in the calling party equipment.Described configurable parameter can be delivered to subscriber equipment by following manner: by the Non-Access Stratum signaling, by open mobile alliance device management message or pass through over-the-air message.
At last, although this paper has described specific exemplary method, equipment and manufacture, the scope that the disclosure comprises is not limited to this.On the contrary, the disclosure covers in the literal intended scope that reasonably drops on claims or all methods, equipment and manufacture in its implication of equal value.
Claims (62)
1. method comprises:
Determine that the LTE network is not first-selected for voice service provides;
Storage is not the sign of the described LTE network of first-selection for voice service provides; And
What access was stored is not the sign of the described LTE network of first-selection for voice service provides.
2. method according to claim 1 wherein, determines that the LTE network is not first-selected comprising: determine can not obtain voice service from described LTE network for voice service provides.
3. method according to claim 1 wherein, determines that the LTE network is not first-selected comprising: determine not to be first-selected from the voice service of described LTE network with comparing from the voice service of another network for voice service provides.
4. method according to claim 1 wherein, determines that the LTE network is not first-selected comprising: receive the Reason For Denial from described LTE network for voice service provides.
5. method according to claim 4, wherein, described Reason For Denial comprises following refusal: indicating when having the voice domain preference for the travelling carriage request registration circuit switched service of " only circuit switched voice " under the S1 pattern circuit switched domain services can use.
6. method according to claim 1 wherein, determines that the LTE network is not first-selected comprising: receive the indication from the not support voice of LTE network for voice service provides.
7. method according to claim 1 wherein, determines that the LTE network is not first-selected comprising: attempt from the voice service of described LTE Network Capture for voice service provides.
8. method according to claim 7 wherein, attempts comprising from the voice service of described LTE Network Capture: attempt obtaining voice service with internet multimedia subsystem.
9. method according to claim 7 wherein, attempts comprising from the voice service of described LTE Network Capture: attempt obtaining voice service with the circuit switched fallback function.
10. method according to claim 1 also comprises: determine that travelling carriage is in the operator scheme centered by voice.
11. method according to claim 1, wherein, described LTE network comprises: the UMTS terrestrial radio Access Network E-UTRAN of evolution.
12. method according to claim 1, wherein, the sign of storing described LTE network comprises: storage is not the tracking area identification symbol TAI of the described LTE network of first-selection for voice service provides.
13. method according to claim 1, wherein, the sign of storing described LTE network comprises: storage is not the public land mobile network PLMN identifier of the described LTE network of first-selection for voice service provides.
14. method according to claim 1, wherein, the sign of storing described LTE network comprises: store the timestamp related with the sign of described LTE network.
15. method according to claim 1, wherein, the sign of storing described LTE network comprises: store in user equipment (UE).
16. method according to claim 1 also comprises: when the sign of storing is the sign of oldest stored, the sign that deletion is stored.
17. method according to claim 1 also comprises: gravity treatment is to different radio access technologies.
18. method according to claim 17, wherein, gravity treatment comprises to different radio access technologies: not gravity treatment is to any LTE network that before was identified as non-first-selection for voice service provides.
19. method according to claim 18, wherein, described different radio access technologies comprises one of second generation network technology or third generation networks technology.
20. method according to claim 1, wherein, storage is not that the sign of the described LTE network of first-selection comprises for voice service provides; Described sign is added in the tabulation of indication identifier of the network of non-first-selection for voice service provides.
21. method according to claim 20 also is included in the tabulation that the following time deletes described identifier: the travelling carriage shutdown; From travelling carriage, remove the subscriber identity module SIM card; Travelling carriage uses to arrange and changes to " data-centered " from " centered by voice "; Perhaps timer expiration.
22. method according to claim 20, comprise that also gravity treatment arrives different radio access technologies, wherein gravity treatment comprises to different radio access technologies: not gravity treatment is to any LTE network that identifies in the tabulation of indication identifier of the network of non-first-selection for voice service provides.
23. method according to claim 20 also comprises: select not public land mobile network PLMN identified in the tabulation of described identifier.
24. method according to claim 23, wherein, the tabulation of described identifier comprises the identifier of indicating PLMN.
25. method according to claim 20 also comprises: select not residential quarter identified in the tabulation of described identifier.
26. method according to claim 25, wherein, the tabulation of described identifier comprises the tracking area identification symbol.
27. method according to claim 20 also comprises: gravity treatment is identified residential quarter in the tabulation of described identifier not.
28. method according to claim 27, wherein, the tabulation of described identifier comprises the tracking area identification symbol.
29. method according to claim 1 also comprises: selection is not the public land mobile network PLMN by the mark for marking of storing.
30. method according to claim 1 also comprises: selection is not the residential quarter by the mark for marking of storing.
31. method according to claim 1 also comprises: gravity treatment is not the residential quarter by the mark for marking of storing.
32. a subscriber equipment is included in operating period so that described subscriber equipment is carried out the hardware and the software that is stored on the tangible computer-readable medium of following operation:
Determine that the LTE network is not first-selected for voice service provides;
Storage is not the sign of the described LTE network of first-selection for voice service provides; And
What access was stored is not the sign of the described LTE network of first-selection for voice service provides.
33. subscriber equipment according to claim 32 wherein, determines that the LTE network is not first-selected comprising: determine can not obtain voice service from described LTE network for voice service provides.
34. subscriber equipment according to claim 32 wherein, determines that the LTE network is not first-selected comprising for voice service provides: determine not to be first-selected from the voice service of described LTE network with comparing from the voice service of another network.
35. subscriber equipment according to claim 32 wherein, determines that the LTE network is not first-selected comprising: receive the Reason For Denial from described LTE network for voice service provides.
36. subscriber equipment according to claim 35, wherein, described Reason For Denial comprises following refusal: indicating when having the voice domain preference for the described user equipment requests registration circuit Exchange Service of " only circuit switched voice " under the S1 pattern circuit switched domain services can use.
37. subscriber equipment according to claim 32 wherein, determines that the LTE network is not first-selected comprising: receive the indication from the not support voice of LTE network for voice service provides.
38. subscriber equipment according to claim 32 wherein, determines that the LTE network is not first-selected comprising: attempt from the voice service of described LTE Network Capture for voice service provides.
39. described subscriber equipment wherein, is attempted comprising from the voice service of described LTE Network Capture: attempt obtaining voice service with internet multimedia subsystem according to claim 38.
40. described subscriber equipment wherein, is attempted comprising from the voice service of described LTE Network Capture: attempt obtaining voice service with the circuit switched fallback function according to claim 38.
41. subscriber equipment according to claim 32 also comprises: be in the hardware and the software that is stored on the tangible computer-readable medium of the operator scheme centered by voice so that described subscriber equipment is determined travelling carriage during operation.
42. subscriber equipment according to claim 32, wherein, described LTE network comprises: the UMTS terrestrial radio Access Network E-UTRAN of evolution.
43. subscriber equipment according to claim 32, wherein, the sign of storing described LTE network comprises: storage is not the tracking area identification symbol TAI of the described LTE network of first-selection for voice service provides.
44. subscriber equipment according to claim 32, wherein, the sign of storing described LTE network comprises: storage is not the public land mobile network PLMN identifier of the described LTE network of first-selection for voice service provides.
45. subscriber equipment according to claim 32, wherein, the sign of storing described LTE network comprises: store the timestamp related with the sign of described LTE network.
46. subscriber equipment according to claim 32, wherein, the sign of storing described LTE network comprises: store in user equipment (UE).
47. subscriber equipment according to claim 32 also comprises: during operation so that described subscriber equipment is worked as deletes the hardware of the sign of storing when the sign of storing is the sign of oldest stored and be stored in software on the tangible computer-readable medium.
48. subscriber equipment according to claim 32 also comprises: during operation so that described subscriber equipment gravity treatment to the hardware of different radio access technologies be stored in software on the tangible computer-readable medium.
49. described subscriber equipment according to claim 48, wherein, gravity treatment comprises to different radio access technologies: not gravity treatment is to any LTE network that before was identified as non-first-selection for voice service provides.
50. described subscriber equipment according to claim 49, wherein, described different radio access technologies comprises one of second generation network technology or third generation networks technology.
51. subscriber equipment according to claim 32, wherein, storage is not that the sign of the described LTE network of first-selection comprises for voice service provides; Described sign is added in the tabulation of indication identifier of the network of non-first-selection for voice service provides.
52. 1 described subscriber equipment also is included in operating period so that described subscriber equipment is deleted the hardware and the software that is stored on the tangible computer-readable medium of the tabulation of described identifier in the following time: the travelling carriage shutdown according to claim 5; From travelling carriage, remove the subscriber identity module SIM card; Travelling carriage uses to arrange and changes to " data-centered " from " centered by voice "; Perhaps timer expiration.
53. 1 described subscriber equipment according to claim 5, also be included in operating period so that described subscriber equipment gravity treatment to the hardware of different radio access technologies be stored in software on the tangible computer-readable medium, wherein gravity treatment comprises to different radio access technologies: not gravity treatment is to any LTE network that identifies in the tabulation of indicating the identifier of the network of non-first-selection for voice service provides.
54. 1 described subscriber equipment also comprises: during operation so that described subscriber equipment is selected the not hardware of identified public land mobile network PLMN and the software that is stored on the tangible computer-readable medium in the tabulation of described identifier according to claim 5.
55. 4 described subscriber equipmenies according to claim 5, wherein, the tabulation of described identifier comprises the identifier of indicating PLMN.
56. 1 described subscriber equipment also comprises: during operation so that described subscriber equipment is selected the not hardware of identified residential quarter and the software that is stored on the tangible computer-readable medium in the tabulation of described identifier according to claim 5.
57. 6 described subscriber equipmenies according to claim 5, wherein, the tabulation of described identifier comprises the tracking area identification symbol.
58. 1 described subscriber equipment according to claim 5 also comprises: during operation so that the described subscriber equipment gravity treatment hardware of identified residential quarter and be stored in software on the tangible computer-readable medium in the tabulation of described identifier not.
59. 8 described subscriber equipmenies according to claim 5, wherein, the tabulation of described identifier comprises the tracking area identification symbol.
60. subscriber equipment according to claim 32 also comprises: during operation so that the selection of described subscriber equipment is not the hardware and the software that is stored on the tangible computer-readable medium by the public land mobile network PLMN of the mark for marking of storing.
61. subscriber equipment according to claim 32 also comprises: during operation so that the selection of described subscriber equipment is not the hardware and the software that is stored on the tangible computer-readable medium by the residential quarter of the mark for marking of storing.
62. subscriber equipment according to claim 32 also comprises: during operation so that described subscriber equipment gravity treatment is not the hardware and the software that is stored on the tangible computer-readable medium by the residential quarter of the mark for marking of storing.
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| US12/813,954 | 2010-06-11 | ||
| PCT/US2011/039807 WO2011156604A1 (en) | 2010-06-11 | 2011-06-09 | Methods and apparatus for voice domain operation |
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| US9113403B2 (en) | 2015-08-18 |
| EP3484211A1 (en) | 2019-05-15 |
| US20110305192A1 (en) | 2011-12-15 |
| EP3220693B1 (en) | 2018-12-12 |
| EP2580933A1 (en) | 2013-04-17 |
| WO2011156604A1 (en) | 2011-12-15 |
| EP3484211B1 (en) | 2021-10-06 |
| US20140233463A1 (en) | 2014-08-21 |
| EP2580933B1 (en) | 2017-05-24 |
| CA2802314A1 (en) | 2011-12-15 |
| CN103069889B (en) | 2015-12-16 |
| EP3220693A1 (en) | 2017-09-20 |
| US8755329B2 (en) | 2014-06-17 |
| CA2802314C (en) | 2016-08-09 |
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